CN208719054U - A kind of adaptive flexible hydraulic cylinder - Google Patents
A kind of adaptive flexible hydraulic cylinder Download PDFInfo
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- CN208719054U CN208719054U CN201821258447.9U CN201821258447U CN208719054U CN 208719054 U CN208719054 U CN 208719054U CN 201821258447 U CN201821258447 U CN 201821258447U CN 208719054 U CN208719054 U CN 208719054U
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- connecting pin
- piston
- groove
- cover board
- cylinder
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Abstract
A kind of adaptive flexible hydraulic cylinder of the utility model, belongs to technical field of hydraulic oil cylinder；Technical problem to be solved is to provide a kind of hydraulic cylinder for allowing piston axis to have certain angle with piston rod axis；The technical solution adopted in the utility model are as follows: piston rod is connect with piston by flexible link；One end of flexible link is the first bulb connecting pin, and the other end is groove connecting pin, and the first cover board is sleeved on the first bulb connecting pin, and the second cover board is fixed on groove connecting pin by screw or bolt；There is a cylinder shape groove on piston end surface, there is the second spherical groove matched with the first bulb of flexible link connecting pin on the bottom surface of cylinder shape groove, the first cover board is fixed on the bottom surface of cylinder shape groove by screw or bolt；One end that piston rod is connect with piston is the second bulb connecting pin, and the second bulb connecting pin is located in the first spherical groove；The utility model provides a kind of flexible hydraulic cylinder.
Description
Technical field
A kind of adaptive flexible hydraulic cylinder of the utility model, belongs to technical field of hydraulic oil cylinder, and in particular to Yi Zhongyun
Perhaps piston axis and piston rod axis have the hydraulic cylinder of certain angle.
Background technique
Hydraulic cylinder generallys use piston and piston rod rigid attachment, and feature is that product structure is simple, in cylinder action mistake
It is used in journey as two power bars.But it is longer in hydraulic cylinder stroke or when structural member installation error is larger, often occur with structural member
Interference phenomenon causes oil cylinder to bear lateral force, each pilot seal element circumferential direction unbalance stress inside oil cylinder, hair in action process
Phenomena such as raw abnormal sound, leakage.
Utility model content
The utility model overcomes the shortcomings of the prior art, and technical problem to be solved is to provide a kind of piston and work
Stopper rod flexible connection allows piston axis and piston rod axis to have the hydraulic cylinder of certain angle.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted in the utility model are as follows: adaptive flexible hydraulic oil
Cylinder, including gray iron, piston and piston rod, cylinder cap are fixed on the open end of cylinder body, and piston is located at cylinder interior, piston rod
One end is located at cylinder interior and connect with piston, and the other end is stretched out outside cylinder body by the through-hole on cylinder cap, piston rod and piston
It is connected by flexible link；
One end of flexible link has the first hemisphere jut, is the first bulb connecting pin, is provided in the other end face
First spherical groove is groove connecting pin, and the first cover board is sleeved on the first bulb connecting pin, the first cover board middle through-hole
Mating surface with the first bulb connecting pin is adaptable spherical surface, and the second cover board is fixed on groove connecting pin by screw or bolt
On, through-hole is provided in the middle part of the second cover board；
There is a cylinder shape groove on the end face that piston is connect with piston rod, have and scratch on the bottom surface of cylinder shape groove
The second spherical groove that property the first bulb of attachment device connecting pin matches, the first cover board are fixed on cylinder by screw or bolt
On the bottom surface of connected in star, the first bulb connecting pin is limited in the second spherical groove；
One end that piston rod is connect with piston has the second hemisphere jut, is the second bulb connecting pin, second bulb
Connecting pin is located in the first spherical groove, and the second bulb connecting pin is limited in the first spherical groove by the second cover board, the second lid
The mating surface of plate and the second bulb connecting pin is adaptable spherical surface.
Fixed first cover board is SOC.HD. cap screw or bolt, is provided with one on the groove connecting pin of flexible link
It is a or multiple can pass through SOC.HD. cap screw or the through-hole of bolt.
Also is provided with can be by SOC.HD. cap screw or the through-hole of bolt for corresponding position on second cover board.
First cover board and the second cover board be it is split type, be made of the half of two symmetrical structures.
It further include bar director element, bar director element is a split ring, and outer ring surface is one section on a spherical surface
Cambered surface, bar director element are set with the cambered surface groove for being provided with a circle on the piston rod, on cylinder cap and being matched with bar with director element,
Bar is located in cambered surface groove with director element.
The top of first hemisphere jut and the second hemisphere jut is processed as plane, corresponding second spherical groove and
The bottom surface of first spherical groove is also plane.
A circle or multi-turn piston guide sealing element are provided between the piston and cylinder body.
A circle or multi-turn bar sealing ring are provided between the piston rod and cylinder cap.
The utility model has the advantages that compared with prior art.
1, in the utility model, piston and piston rod allow piston and piston by flexible connecting device Flexible spacecraft
The axis of bar has certain angle, compensates for error caused by oil cylinder stroke is longer or structural member is installed, reduces in outer masterpiece
With the interference phenomenon of each element in lower inside, the generation of the abnormal phenomenon such as oil leak and abnormal sound is avoided.
2, in the utility model, flexible link is the connection of both ends spherical surface, can rotate in a certain range, realize work
Rotation of the stopper rod in certain angle.
3, in the utility model, bar director element is had also been devised, the cooperation bottom surface of bar director element and mounting groove is
Spherical surface, piston rod, can be using the centers of circle of bar director element mounting groove spherical surface as the center of circle under the action of lateral force, opposite cylinder barrel
It turns an angle.
4, in the utility model, the cooperation bottom surface of bar director element and mounting groove is spherical surface, is transporting piston rod
During dynamic, bar director element and piston rod bearing area are constant, and the stress for avoiding director element from being born is concentrated, to draw
Frictional force between the director element and piston rod of hair is uneven, the abnormalities such as abnormal sound occurs, creeps.
5, in the utility model, piston guide sealing element is installed in piston guide slot, is cooperated with inner hole of cylinder, and piston is led
It is not influenced, is run smoothly, sealing effect is excellent by piston rod rotation amount to the fit clearance of sealing element and inner hole of cylinder.
6, in the utility model, flexible link is mounted in the cylinder shape groove of piston, mechanical when piston rod stretches out
Limit is still carried out by piston, will not influence the stroke of oil cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is structural schematic diagram when piston rod stretches out in Fig. 1.
Fig. 3 is the structural schematic diagram of flexible link in the utility model.
Fig. 4 is the structural schematic diagram of bar director element in the utility model.
Fig. 5 is the sectional view of Fig. 4.
Fig. 6 is the structural schematic diagram of the first cover board in the utility model.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is use state diagram when actual piston bar has certain angle with piston axis.
Fig. 9 is structural schematic diagram when piston rod stretches out in Fig. 8.
In figure: 1 is cylinder body, and 2 be cylinder cap, and 3 be piston, and 4 be piston rod, and 5 be the first bulb connecting pin, and 6 connect for groove
End, 7 be the first cover board, and 8 be the second cover board, and 9 be cylinder shape groove, and 10 be the second bulb connecting pin, and 11 be bar director element,
12 be piston guide sealing element.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing.
As shown in Fig. 1-Fig. 7, a kind of adaptive flexible hydraulic cylinder of the utility model, including cylinder body 1, cylinder cap 2, piston 3
With piston rod 4, cylinder cap 2 is fixed on the open end of cylinder body 1, and piston 3 is located inside cylinder body 1, and 4 one end of piston rod is located in cylinder body 1
Portion is simultaneously connect with piston 3, and the other end is stretched out outside cylinder body 1 by the through-hole on cylinder cap 2, it is characterised in that: piston rod 4 and piston
3 are connected by flexible link；
One end of flexible link has the first hemisphere jut, is the first bulb connecting pin 5, is provided in the other end face
First spherical groove is groove connecting pin 6, and the first cover board 7 is sleeved on the first bulb connecting pin 5,7 middle part of the first cover board
The mating surface of through-hole and the first bulb connecting pin 5 is adaptable spherical surface, and the second cover board 8 is fixed on groove by screw or bolt
On connecting pin 6, through-hole is provided in the middle part of the second cover board 8；
There is a cylinder shape groove 9 on the end face that piston 3 is connect with piston rod 4, have on the bottom surface of cylinder shape groove 9
The second spherical groove matched with the first bulb of flexible link connecting pin 5, the first cover board 7 are fixed by screw or bolt
On the bottom surface of cylinder shape groove 9, the first bulb connecting pin 5 is limited in the second spherical groove；
One end that piston rod 4 is connect with piston 3 have the second hemisphere jut, be the second bulb connecting pin 10, described second
Bulb connecting pin 10 is located in the first spherical groove, and the second bulb connecting pin 10 is limited in the first spherical groove by the second cover board 8
Interior, the mating surface of the second cover board 8 and the second bulb connecting pin 10 is adaptable spherical surface.
Fixed first cover board 7 is SOC.HD. cap screw or bolt, is provided on the groove connecting pin 6 of flexible link
One or more can pass through SOC.HD. cap screw or the through-hole of bolt.
Also is provided with can be by SOC.HD. cap screw or the through-hole of bolt for corresponding position on second cover board 8.
First cover board 7 and the second cover board 8 be it is split type, be made of the half of two symmetrical structures.
It further include bar director element 11, bar director element 11 is a split ring, and outer ring surface is on a spherical surface
One section of cambered surface, bar director element 11 are sleeved on piston rod 4, and a circle is provided on cylinder cap 2 and is matched with bar director element 11
Cambered surface groove, bar is located in cambered surface groove with director element 11.
The top of first hemisphere jut and the second hemisphere jut is processed as plane, corresponding second spherical groove and
The bottom surface of first spherical groove is also plane.
A circle or multi-turn piston guide sealing element 12 are provided between the piston 3 and cylinder body 1.
A circle or multi-turn bar sealing ring are provided between the piston rod 4 and cylinder cap 2.
As shown in Figure 8, Figure 9, in actual use, hydraulic cylinder stroke is longer or when structural member installation error is larger, living
The axis of stopper rod 4 and piston 3 can not be overlapped, and have certain angle, and the flexible link in the utility model passes through two balls
Head connecting pin and groove connecting pin, depending post director element 11, so that piston rod 4 can be rotated certain angle, to a certain extent
Error caused by oil cylinder stroke is longer or structural member is installed is compensated for, the dry of oil cylinder internal each element under external force is reduced
Phenomenon is related to, the generation of the abnormal phenomenon such as oil leak and abnormal sound is avoided.
The embodiments of the utility model have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.
Claims (8)
1. a kind of adaptive flexible hydraulic cylinder, including cylinder body (1), cylinder cap (2), piston (3) and piston rod (4), cylinder cap (2) are solid
Be scheduled on the open end of cylinder body (1), it is internal that piston (3) is located at cylinder body (1), piston rod (4) one end be located inside cylinder body (1) and with work
(3) connection is filled in, the other end stretches out cylinder body (1) outside by the through-hole on cylinder cap (2), it is characterised in that: piston rod (4) and piston
(3) it is connected by flexible link；
One end of flexible link has the first hemisphere jut, is the first bulb connecting pin (5), and the is provided in the other end face
One spherical groove is groove connecting pin (6) that the first cover board (7) is sleeved on the first bulb connecting pin (5), first cover board
(7) mating surface of middle through-hole and the first bulb connecting pin (5) is adaptable spherical surface, and the second cover board (8) passes through screw or spiral shell
Bolt is fixed on groove connecting pin (6), is provided with through-hole in the middle part of the second cover board (8)；
There is a cylinder shape groove (9), on the bottom surface of cylinder shape groove (9) on the end face that piston (3) is connect with piston rod (4)
With the second spherical groove matched with the first bulb of flexible link connecting pin (5), the first cover board (7) by screw or
Bolt is fixed on the bottom surface of cylinder shape groove (9), and the first bulb connecting pin (5) is limited in the second spherical groove；
One end that piston rod (4) is connect with piston (3) has the second hemisphere jut, is the second bulb connecting pin (10), and described the
Two bulb connecting pins (10) are located in the first spherical groove, and the second bulb connecting pin (10) is limited in first by the second cover board (8)
In spherical groove, the mating surface of the second cover board (8) and the second bulb connecting pin (10) is adaptable spherical surface.
2. a kind of adaptive flexible hydraulic cylinder according to claim 1, it is characterised in that: fixed first cover board
(7) be SOC.HD. cap screw or bolt, being provided with one or more on the groove connecting pin (6) of flexible link can be by interior six
The through-hole of square screw or bolt.
3. a kind of adaptive flexible hydraulic cylinder according to claim 2, it is characterised in that: on second cover board (8)
Corresponding position is also provided with can be by SOC.HD. cap screw or the through-hole of bolt.
4. a kind of adaptive flexible hydraulic cylinder according to claim 1 to 3, it is characterised in that: described first
Cover board (7) and the second cover board (8) be it is split type, be made of the half of two symmetrical structures.
5. a kind of adaptive flexible hydraulic cylinder according to claim 1 to 3, it is characterised in that: further include bar
With director element (11), bar director element (11) is a split ring, and outer ring surface is one section of cambered surface on a spherical surface, and bar is used
Director element (11) is sleeved on piston rod (4), and the cambered surface that a circle is matched with bar with director element (11) is provided on cylinder cap (2)
Groove, bar are located in cambered surface groove with director element (11).
6. a kind of adaptive flexible hydraulic cylinder according to claim 1 to 3, it is characterised in that: described first
The top of hemisphere jut and the second hemisphere jut is processed as plane, the bottom of corresponding second spherical groove and the first spherical groove
Face is also plane.
7. a kind of adaptive flexible hydraulic cylinder according to claim 1 to 3, it is characterised in that: the piston
(3) circle or multi-turn piston guide sealing element (12) are provided between cylinder body (1).
8. a kind of adaptive flexible hydraulic cylinder according to claim 1 to 3, it is characterised in that: the piston
A circle or multi-turn bar sealing ring are provided between bar (4) and cylinder cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258447.9U CN208719054U (en) | 2018-08-06 | 2018-08-06 | A kind of adaptive flexible hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258447.9U CN208719054U (en) | 2018-08-06 | 2018-08-06 | A kind of adaptive flexible hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719054U true CN208719054U (en) | 2019-04-09 |
Family
ID=65976400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821258447.9U Withdrawn - After Issue CN208719054U (en) | 2018-08-06 | 2018-08-06 | A kind of adaptive flexible hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799246A (en) * | 2018-08-06 | 2018-11-13 | 山西航天清华装备有限责任公司 | Adaptive flexibility hydraulic cylinder |
-
2018
- 2018-08-06 CN CN201821258447.9U patent/CN208719054U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799246A (en) * | 2018-08-06 | 2018-11-13 | 山西航天清华装备有限责任公司 | Adaptive flexibility hydraulic cylinder |
| CN108799246B (en) * | 2018-08-06 | 2023-09-29 | 山西航天清华装备有限责任公司 | Self-adaptive flexible hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190409 Effective date of abandoning: 20230929 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190409 Effective date of abandoning: 20230929 |